Is the region off Cape Darnley a main source of Antarctic Bottom Water?
| Project/Area Number |
23340135
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Meteorology/Physical oceanography/Hydrology
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| Research Institution | Hokkaido University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
AOKI Shigeru 北海道大学, 低温科学研究所, 准教授 (80281583)
MATSUMURA Yoshimasa 北海道大学, 低温科学研究所, 助教 (70631399)
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| Co-Investigator(Renkei-kenkyūsha) |
SHIMIZU Daisuke 情報・システム研究機構, 国立極地研究所, 特任技術専門員 (80455500)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2013: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2012: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2011: ¥7,280,000 (Direct Cost: ¥5,600,000、Indirect Cost: ¥1,680,000)
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| Keywords | 南極海 / 南極底層水 / 海氷 |
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| Research Abstract |
Combining time-series oceanic data obtained by moorings off the Cape Darnley in the Indian Sector of the Southern Ocean during 2008-09 with concurrent sea-ice data obtained by satellite remote sensing and hydrographic data obtained by instrumented seals, we have quantitatively shown that this region is the one of the main sources of Antarctic Bottom Water (AABW) due to intense sea-ice production in a coastal polynya. Namely, this region is the fourth AABW source region after the Weddell and Ross Seas and the region off Adélie Land. Unlike in the other three source regions, this region is the main AABW source solely due to intense sea-ice production without any of large continental shelf, ice shelf, and large depression.
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Report
(4 results)
Research Products
(31 results)
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[Journal Article] Antarctic Bottom Water production by intense sea-ice formation in the Cape Darnley Polynya, Nature Geoscience2013
Author(s)
Ohshima, K. I., Y. Fukamachi, G. D.Williams, S. Nihashi, F. Roquet, Y. Kitade, T. Tamura, D. Hirano, L. Herraiz- Borreguero, I. Field, M. Hindell, S. Aoki and M.Wakatsuchi
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Journal Title
Highlight article in March issue
Volume: 6
Issue: 3
Pages: 235-240
DOI
Related Report
Peer Reviewed
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[Journal Article] Antarctic Bottom Water production from the Vincennes Bay Polynya, East Antarctica
Author(s)
Kitade, Y., K. Shimada, T. Tamura, G. D. Williams, S. Aoki, Y. Fukamachi, F. Roquet, M. Hindell, S. Ushio, and K. I. Ohshima
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Journal Title
Geophysical Research Letters
Volume: (in press)
NAID
Related Report
Peer Reviewed
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